Let the hive mind of Engadget get that for you.
"We need a digital camera that can be switched on and fire off that first shot fast. It's not a commonly tracked statistic on any review site, and nobody seems to have this information for every camera. We were hoping other readers could inform us as to what small digital cameras can fire off their first pics in under a second (ideally under half a second). It needs to be small, but mostly, just really quick in operation. Thanks!"
Maybe they are just phasing out the 20-hours-of-HD model in favor of the XL (150 hours). I have about a hundred season passes, and they are almost all HD by now. Without my 1 Gig extension drive, I wouldn't even have enough for two days worth of recordings.